Clinical trials: Hypoxia
Gastroesophageal Reflux, Apnea
Study of Erythromycin in GER-Associated Apnea of the Newborn
To evaluate the relationship of reflux and apnea and to determine whether the administration of erythromycin improves the incidence of GER and GER-associated apnea, bradycardic and/or desaturation events in a prospective…
- Conditions
- Gastroesophageal Reflux, Apnea, Bradycardia
- Trial name
- SEGAN (NCT01825473)
- Testing
- Erythromycin, Multi-channel intra-luminal impedance (MII) pH monitoring
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Virginia
Type 2 Diabetes
Effect of a Simulated Flight in Patients With Type 2 Diabetes and Healthy Volunteers
Diabetes is an increasingly common condition which affects millions of people in the United Kingdom. Patients with type 2 diabetes are at increased risk to develop severe heart disease and vascular complications and these can…
- Trial name
- FlyBar (NCT04031417)
- Testing
- Hypoxia, Low Humidity
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Hull University Teaching Hospitals NHS Trust
Hypoxia, Hypercapnia
Impact of NOS, COX, and ROS Inhibition on Cerebral Blood Flow Regulation
Elucidating cerebrovascular control mechanisms during physiologic stress may help identify novel therapeutic targets aimed at preventing or reducing the impact of cerebrovascular disease.
- Trial name
- NCT03066115
- Testing
- L-NMMA, Ketorolac, Ascorbic Acid
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Hypoxia
Integrated Pulmonary Index Monitoring on the Incidence of Hypoxemia in Elderly Patients With Painless Colonoscopy
The purpose of this clinical trial is to integrated pulmonary index to see if there is an effect on the incidence of hypoxemia during painless colonoscopy in older patients.
- Trial name
- NCT06987630
- Testing
- monitor integrated pulmonary index（IPI） and take appropriate measures
- Where
- China
- Volunteers
- 153 people, healthy volunteers welcome
- Sponsor
- The First People's Hospital of Lianyungang
Chronic Periodontitis, Occlusal Trauma
Alterations in Subgingival Microbiota and Hypoxia in Occlusal Trauma
Present study suggests that excessive occlusal forces did not cause a significant change in hypoxia and vascular markers, however a slight alteration in subgingival microbiota was observed.
- Trial name
- NCT03621891
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Tokat Gaziosmanpasa University
Hypoxemia, Acute Mountain Sickness (AMS)
The Role of Acetazolamide in Mitigating Inflammation and Innate Immune Activation at High Altitude
High altitude travel can lead to inflammation in the body and activation of innate immune cells. The investigators' prior research demonstrates that 1 to 3 days at 3800 m elevation leads to increased expression of genes in blood…
- Conditions
- Hypoxemia, Acute Mountain Sickness (AMS), Inflammation, Immune Response
- Trial name
- NCT07517068
- Testing
- ACETAZOLAMIDE oral capsule
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- University of California, Riverside
Orthostatic Hypotension, Ischemia
Evaluation of the ORTHO-LBNP System
The pilot study aims to evaluate a prototype system that enables military pilots to train under conditions of orthostatic hypotension and ischemic hypoxia.
- Conditions
- Orthostatic Hypotension, Ischemia, Hypoxia
- Trial name
- ORTHO-LBNP (NCT03354234)
- Testing
- Head up tilt (HUT), Lower body negative pressure (LBNP), Head down tilt (HDT)
- Where
- Poland
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Military Institute of Aviation Medicine
Hypoxia, Hypercapnia
The Effect of Hypercapnia on Physiological Parameters During Short-term Breathing
The aim of the project is to evaluate the effect of hypercapnia on physiological parameters in a healthy person during short-term hypoxia and hypercapnia.
- Conditions
- Hypoxia, Hypercapnia, Cardiac Output, High
- Trial name
- HYPERCO (NCT05441007)
- Testing
- Hypoxic, Hypercapnic, Hypoxic and Hypercapnic
- Where
- Czechia
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Czech Technical University in Prague
Pain, Hypoxia
Effects of Walking Apnea at High Lung Volume on Hypoalgesia, Cardiovascular Function and Respiratory Function
The aim of this randomized controlled study is to explore the hypoalgesic response of a 6 minutes of intermittent walking apneas training session at high lung volume in healthy subjects; also, as secondary objectives, to analyze…
- Conditions
- Pain, Hypoxia, Hypercapnia, Apnea
- Trial name
- NCT06158282
- Testing
- Voluntary apnoea
- Where
- Spain
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Centro Universitario La Salle
Hypoxia
SpO2 Hypoxia Accuracy Validation Study
The primary objective of this study is to evaluate the % oxygen saturation by pulse oximetry accuracy of a combined pulse oximetry system which consists of a Nonin sensor ), an adaptor cable, and an oximetry system during…
- Trial name
- NCT03348189
- Testing
- Pulse Oximeter
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Nonin Medical, Inc
Hypobaric Hypoxia, Metabolomics
Oxidative Stress in Hypobaric Hypoxia
The trial investigates changes in metabolism during high altitude expedition up to 6865m. A mass-spectrometry based platform is used to detect different oxidative stress related metabolites.
- Conditions
- Hypobaric Hypoxia, Metabolomics, Oxidative Stress, Acute Mountain Sickness
- Trial name
- NCT01436383
- Testing
- Hypoxic exposure
- Where
- Switzerland
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Aging
Dietary Nitrate and Physiological Aging
The main purpose/s of this study is to examine the effects of 4 weeks of dietary nitrate supplementation on peripheral chemoreceptor sensitivity, spontaneous baroreflex sensitivity, and blood pressure responsiveness to a variety…
- Trial name
- NCT02593305
- Testing
- Super Beets
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Darren P Casey
Iron Deficiency Anemia, Iron Deficiency (Without Anemia)
Effect of Altitude on Iron Absorption in Iron Depleted Women
One of the most common nutritional deficiencies worldwide is iron deficiency. Iron deficiency is considered the main cause of anaemia in developing countries, including those in South America.
- Conditions
- Iron Deficiency Anemia, Iron Deficiency (Without Anemia), Altitude Hypoxia
- Trial name
- PotatoAlt (NCT05500014)
- Testing
- Biofortified potato, not genetically modified
- Where
- 2 sites in Peru
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Swiss Distance University of Applied Sciences
Hypoxia
Effects of Expiratory Pressure on Arterial Oxygenation During Hypoxia
Altitude tolerance correlates with the level of oxygenation achieved. The aim of the present study is to investigate whether increased expiratory pressure within the thorax is able to improve oxygenation during hypoxic hypoxia.
- Trial name
- hypex (NCT01260428)
- Testing
- threshold PEEP
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- AGIR à Dom
Obstructive Sleep Apnea, Hypertension
Effect of Selective and Nonselective Cyclooxygenase Enzyme Inhibition on Arterial Blood Pressure and Cerebral Blood Flow With Exposure to Intermittent Hypoxia in Humans
The study has been designed to assess the effect of cyclooxygenase inhibition on blood pressure, cerebral blood flow, ventilation and renal hemodynamics following chronic intermittent hypoxia exposure.
- Conditions
- Obstructive Sleep Apnea, Hypertension, Cardiovascular Diseases, Stroke
- Trial name
- NCT01280006
- Testing
- Intermittent hypoxia, Indomethacin, Celecoxib
- Where
- Canada
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Calgary
Right Ventricular Dysfunction, Hypoxia
Impact of Iron Supplementation on Right Ventricular Function and Exercise Performance in Hypoxia
The purpose of this study is to determine if taking iron supplement pills improves exercise performance in low-oxygen conditions.
- Trial name
- NCT05349630
- Testing
- Ferrous sulfate 325mg
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Retinal Oxygenation, Retinal Blood Flow
Effect of Systemic Hypoxia and Hyperoxia on Retinal Oxygen Saturation
Adequate perfusion and oxygenation is essential for the function of the inner retina. Although it is known that oxygen tension is very well autoregulated in the retina, the physiological mechanisms behind this regulation process…
- Trial name
- NCT01692821
- Testing
- 100% oxygen breathing, 15% oxygen in N2 breathing, 12% oxygen in N2 breathing
- Where
- Austria
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Healthy
Relative Bioavailability of Two Formulations of AKB-6548 and the Food Effect of a New Tablet in Healthy Adult Subjects
The primary purpose of this study is to compare the PK parameters of a single dose of a test tablet formulation of AKB-6548 relative to a single dose of the reference AKB-6548 tablet formulation, both treatments administered…
- Trial name
- NCT02412449
- Testing
- AKB-6548 tablet, reference formulation given in the fasted state, AKB-6548 tablet, test formulation given in the fasted state., AKB-6548 tablet, test formulation given in the fed state
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Akebia Therapeutics
Hypoxic Respiratory Failure
Effect of FAST HUGS WITH ICU Approach on Length of Intensive Care Unit Stay in Patients With Hypoxic Respiratory Failure
This study will investigate the effect of the FAST HUGS WITH ICU approach on the length of stay in the intensive care unit in patients with hypoxic respiratory failure.
- Trial name
- NCT06901050
- Testing
- FAST HUGS WITH ICU approach
- Where
- Turkey (Türkiye)
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Muş Alparslan University
Spinal Cord Injuries
Repetitive Acute Intermittent Hypoxia for Spinal Cord Repair
Our goal is to enhance repeated exposure to acute intermittent hypoxia (rAIH)/training-induced aftereffects on upper and lower limb function recovery in humans with chronic spinal cord injury (SCI).
- Trial name
- NCT03433599
- Testing
- Repeated exposure to acute Intermittent Hypoxia (rAIH), Normal Room Air, Upper-limb Training by Research Staff
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Shirley Ryan AbilityLab